darwinEvents.c (18832B)
1 /* 2 * Darwin event queue and event handling 3 * 4 * Copyright 2007-2008 Apple Inc. 5 * Copyright 2004 Kaleb S. KEITHLEY. All Rights Reserved. 6 * Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved. 7 * 8 * This file is based on mieq.c by Keith Packard, 9 * which contains the following copyright: 10 * Copyright 1990, 1998 The Open Group 11 * 12 * 13 * Copyright (c) 2002-2012 Apple Inc. All rights reserved. 14 * 15 * Permission is hereby granted, free of charge, to any person 16 * obtaining a copy of this software and associated documentation files 17 * (the "Software"), to deal in the Software without restriction, 18 * including without limitation the rights to use, copy, modify, merge, 19 * publish, distribute, sublicense, and/or sell copies of the Software, 20 * and to permit persons to whom the Software is furnished to do so, 21 * subject to the following conditions: 22 * 23 * The above copyright notice and this permission notice shall be 24 * included in all copies or substantial portions of the Software. 25 * 26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 29 * NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT 30 * HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 31 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 32 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 33 * DEALINGS IN THE SOFTWARE. 34 * 35 * Except as contained in this notice, the name(s) of the above 36 * copyright holders shall not be used in advertising or otherwise to 37 * promote the sale, use or other dealings in this Software without 38 * prior written authorization. 39 */ 40 41 #include "sanitizedCarbon.h" 42 43 #ifdef HAVE_DIX_CONFIG_H 44 #include <dix-config.h> 45 #endif 46 47 #include <X11/X.h> 48 #include <X11/Xmd.h> 49 #include <X11/Xproto.h> 50 #include "misc.h" 51 #include "windowstr.h" 52 #include "pixmapstr.h" 53 #include "inputstr.h" 54 #include "inpututils.h" 55 #include "eventstr.h" 56 #include "mi.h" 57 #include "scrnintstr.h" 58 #include "mipointer.h" 59 #include "os.h" 60 #include "exglobals.h" 61 62 #include "darwin.h" 63 #include "quartz.h" 64 #include "quartzKeyboard.h" 65 #include "quartzRandR.h" 66 #include "darwinEvents.h" 67 68 #include <sys/types.h> 69 #include <sys/uio.h> 70 #include <unistd.h> 71 #include <pthread.h> 72 #include <errno.h> 73 #include <time.h> 74 75 #include <IOKit/hidsystem/IOLLEvent.h> 76 77 #include <X11/extensions/applewmconst.h> 78 #include "applewmExt.h" 79 80 /* FIXME: Abstract this better */ 81 extern Bool 82 QuartzModeEventHandler(int screenNum, XQuartzEvent *e, DeviceIntPtr dev); 83 84 int darwin_all_modifier_flags = 0; // last known modifier state 85 int darwin_all_modifier_mask = 0; 86 int darwin_x11_modifier_mask = 0; 87 88 #define FD_ADD_MAX 128 89 static int fd_add[FD_ADD_MAX]; 90 int fd_add_count = 0; 91 static pthread_mutex_t fd_add_lock = PTHREAD_MUTEX_INITIALIZER; 92 static pthread_cond_t fd_add_ready_cond = PTHREAD_COND_INITIALIZER; 93 static pthread_t fd_add_tid = NULL; 94 95 static BOOL mieqInitialized; 96 static pthread_mutex_t mieqInitializedMutex = PTHREAD_MUTEX_INITIALIZER; 97 static pthread_cond_t mieqInitializedCond = PTHREAD_COND_INITIALIZER; 98 99 _X_NOTSAN 100 extern inline void 101 wait_for_mieq_init(void) 102 { 103 if (!mieqInitialized) { 104 pthread_mutex_lock(&mieqInitializedMutex); 105 while (!mieqInitialized) { 106 pthread_cond_wait(&mieqInitializedCond, &mieqInitializedMutex); 107 } 108 pthread_mutex_unlock(&mieqInitializedMutex); 109 } 110 } 111 112 _X_NOTSAN 113 static inline void 114 signal_mieq_init(void) 115 { 116 pthread_mutex_lock(&mieqInitializedMutex); 117 mieqInitialized = TRUE; 118 pthread_cond_broadcast(&mieqInitializedCond); 119 pthread_mutex_unlock(&mieqInitializedMutex); 120 } 121 122 /*** Pthread Magics ***/ 123 static pthread_t 124 create_thread(void *(*func)(void *), void *arg) 125 { 126 pthread_attr_t attr; 127 pthread_t tid; 128 129 pthread_attr_init(&attr); 130 pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM); 131 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); 132 pthread_create(&tid, &attr, func, arg); 133 pthread_attr_destroy(&attr); 134 135 return tid; 136 } 137 138 /* 139 * DarwinPressModifierKey 140 * Press or release the given modifier key (one of NX_MODIFIERKEY_* constants) 141 */ 142 static void 143 DarwinPressModifierKey(int pressed, int key) 144 { 145 int keycode = DarwinModifierNXKeyToNXKeycode(key, 0); 146 147 if (keycode == 0) { 148 ErrorF("DarwinPressModifierKey bad keycode: key=%d\n", key); 149 return; 150 } 151 152 DarwinSendKeyboardEvents(pressed, keycode); 153 } 154 155 /* 156 * DarwinUpdateModifiers 157 * Send events to update the modifier state. 158 */ 159 160 static int darwin_x11_modifier_mask_list[] = { 161 #ifdef NX_DEVICELCMDKEYMASK 162 NX_DEVICELCTLKEYMASK, NX_DEVICERCTLKEYMASK, 163 NX_DEVICELSHIFTKEYMASK, NX_DEVICERSHIFTKEYMASK, 164 NX_DEVICELCMDKEYMASK, NX_DEVICERCMDKEYMASK, 165 NX_DEVICELALTKEYMASK, NX_DEVICERALTKEYMASK, 166 #else 167 NX_CONTROLMASK, NX_SHIFTMASK, NX_COMMANDMASK, 168 NX_ALTERNATEMASK, 169 #endif 170 NX_ALPHASHIFTMASK, 171 0 172 }; 173 174 static int darwin_all_modifier_mask_additions[] = { NX_SECONDARYFNMASK, 0 }; 175 176 static void 177 DarwinUpdateModifiers(int pressed, // KeyPress or KeyRelease 178 int flags) // modifier flags that have changed 179 { 180 int *f; 181 int key; 182 183 /* Capslock is special. This mask is the state of capslock (on/off), 184 * not the state of the button. Hopefully we can find a better solution. 185 */ 186 if (NX_ALPHASHIFTMASK & flags) { 187 DarwinPressModifierKey(KeyPress, NX_MODIFIERKEY_ALPHALOCK); 188 DarwinPressModifierKey(KeyRelease, NX_MODIFIERKEY_ALPHALOCK); 189 } 190 191 for (f = darwin_x11_modifier_mask_list; *f; f++) 192 if (*f & flags && *f != NX_ALPHASHIFTMASK) { 193 key = DarwinModifierNXMaskToNXKey(*f); 194 if (key == -1) 195 ErrorF("DarwinUpdateModifiers: Unsupported NXMask: 0x%x\n", 196 *f); 197 else 198 DarwinPressModifierKey(pressed, key); 199 } 200 } 201 202 /* Generic handler for Xquartz-specifc events. When possible, these should 203 be moved into their own individual functions and set as handlers using 204 mieqSetHandler. */ 205 206 static void 207 DarwinEventHandler(int screenNum, InternalEvent *ie, DeviceIntPtr dev) 208 { 209 XQuartzEvent *e = &(ie->xquartz_event); 210 211 switch (e->subtype) { 212 case kXquartzControllerNotify: 213 DEBUG_LOG("kXquartzControllerNotify\n"); 214 AppleWMSendEvent(AppleWMControllerNotify, 215 AppleWMControllerNotifyMask, 216 e->data[0], 217 e->data[1]); 218 break; 219 220 case kXquartzPasteboardNotify: 221 DEBUG_LOG("kXquartzPasteboardNotify\n"); 222 AppleWMSendEvent(AppleWMPasteboardNotify, 223 AppleWMPasteboardNotifyMask, 224 e->data[0], 225 e->data[1]); 226 break; 227 228 case kXquartzActivate: 229 DEBUG_LOG("kXquartzActivate\n"); 230 QuartzShow(); 231 AppleWMSendEvent(AppleWMActivationNotify, 232 AppleWMActivationNotifyMask, 233 AppleWMIsActive, 0); 234 break; 235 236 case kXquartzDeactivate: 237 DEBUG_LOG("kXquartzDeactivate\n"); 238 AppleWMSendEvent(AppleWMActivationNotify, 239 AppleWMActivationNotifyMask, 240 AppleWMIsInactive, 0); 241 QuartzHide(); 242 break; 243 244 case kXquartzReloadPreferences: 245 DEBUG_LOG("kXquartzReloadPreferences\n"); 246 AppleWMSendEvent(AppleWMActivationNotify, 247 AppleWMActivationNotifyMask, 248 AppleWMReloadPreferences, 0); 249 break; 250 251 case kXquartzToggleFullscreen: 252 DEBUG_LOG("kXquartzToggleFullscreen\n"); 253 if (XQuartzIsRootless) 254 ErrorF( 255 "Ignoring kXquartzToggleFullscreen because of rootless mode."); 256 else 257 QuartzRandRToggleFullscreen(); 258 break; 259 260 case kXquartzSetRootless: 261 DEBUG_LOG("kXquartzSetRootless\n"); 262 if (e->data[0]) { 263 QuartzRandRSetFakeRootless(); 264 } 265 else { 266 QuartzRandRSetFakeFullscreen(FALSE); 267 } 268 break; 269 270 case kXquartzSetRootClip: 271 QuartzSetRootClip(e->data[0]); 272 break; 273 274 case kXquartzQuit: 275 GiveUp(0); 276 break; 277 278 case kXquartzSpaceChanged: 279 DEBUG_LOG("kXquartzSpaceChanged\n"); 280 QuartzSpaceChanged(e->data[0]); 281 break; 282 283 case kXquartzListenOnOpenFD: 284 ErrorF("Calling ListenOnOpenFD() for new fd: %d\n", (int)e->data[0]); 285 ListenOnOpenFD((int)e->data[0], 1); 286 break; 287 288 case kXquartzReloadKeymap: 289 DarwinKeyboardReloadHandler(); 290 break; 291 292 case kXquartzDisplayChanged: 293 DEBUG_LOG("kXquartzDisplayChanged\n"); 294 QuartzUpdateScreens(); 295 296 /* Update our RandR info */ 297 QuartzRandRUpdateFakeModes(TRUE); 298 break; 299 300 default: 301 if (!QuartzModeEventHandler(screenNum, e, dev)) 302 ErrorF("Unknown application defined event type %d.\n", e->subtype); 303 } 304 } 305 306 void 307 DarwinListenOnOpenFD(int fd) 308 { 309 ErrorF("DarwinListenOnOpenFD: %d\n", fd); 310 311 pthread_mutex_lock(&fd_add_lock); 312 if (fd_add_count < FD_ADD_MAX) 313 fd_add[fd_add_count++] = fd; 314 else 315 ErrorF("FD Addition buffer at max. Dropping fd addition request.\n"); 316 317 pthread_cond_broadcast(&fd_add_ready_cond); 318 pthread_mutex_unlock(&fd_add_lock); 319 } 320 321 static void * 322 DarwinProcessFDAdditionQueue_thread(void *args) 323 { 324 /* TODO: Possibly adjust this to no longer be a race... maybe trigger this 325 * once a client connects and claims to be the WM. 326 * 327 * From ajax: 328 * There's already an internal callback chain for setting selection [in 1.5] 329 * ownership. See the CallSelectionCallback at the bottom of 330 * ProcSetSelectionOwner, and xfixes/select.c for an example of how to hook 331 * into it. 332 */ 333 334 struct timespec sleep_for; 335 struct timespec sleep_remaining; 336 337 sleep_for.tv_sec = 3; 338 sleep_for.tv_nsec = 0; 339 340 ErrorF( 341 "X11.app: DarwinProcessFDAdditionQueue_thread: Sleeping to allow xinitrc to catchup.\n"); 342 while (nanosleep(&sleep_for, &sleep_remaining) != 0) { 343 sleep_for = sleep_remaining; 344 } 345 346 pthread_mutex_lock(&fd_add_lock); 347 while (true) { 348 while (fd_add_count) { 349 DarwinSendDDXEvent(kXquartzListenOnOpenFD, 1, 350 fd_add[--fd_add_count]); 351 } 352 pthread_cond_wait(&fd_add_ready_cond, &fd_add_lock); 353 } 354 355 return NULL; 356 } 357 358 Bool 359 DarwinEQInit(void) 360 { 361 int *p; 362 363 for (p = darwin_x11_modifier_mask_list; *p; p++) { 364 darwin_x11_modifier_mask |= *p; 365 } 366 367 darwin_all_modifier_mask = darwin_x11_modifier_mask; 368 for (p = darwin_all_modifier_mask_additions; *p; p++) { 369 darwin_all_modifier_mask |= *p; 370 } 371 372 mieqInit(); 373 mieqSetHandler(ET_XQuartz, DarwinEventHandler); 374 375 if (!fd_add_tid) 376 fd_add_tid = create_thread(DarwinProcessFDAdditionQueue_thread, NULL); 377 378 signal_mieq_init(); 379 380 return TRUE; 381 } 382 383 void 384 DarwinEQFini(void) 385 { 386 mieqFini(); 387 } 388 389 /* 390 * ProcessInputEvents 391 * Read and process events from the event queue until it is empty. 392 */ 393 void 394 ProcessInputEvents(void) 395 { 396 char nullbyte; 397 int x = sizeof(nullbyte); 398 399 mieqProcessInputEvents(); 400 401 // Empty the signaling pipe 402 while (x == sizeof(nullbyte)) { 403 x = read(darwinEventReadFD, &nullbyte, sizeof(nullbyte)); 404 } 405 } 406 407 /* Sends a null byte down darwinEventWriteFD, which will cause the 408 Dispatch() event loop to check out event queue */ 409 static void 410 DarwinPokeEQ(void) 411 { 412 char nullbyte = 0; 413 // <daniels> oh, i ... er ... christ. 414 write(darwinEventWriteFD, &nullbyte, sizeof(nullbyte)); 415 } 416 417 void 418 DarwinInputReleaseButtonsAndKeys(DeviceIntPtr pDev) 419 { 420 input_lock(); 421 { 422 int i; 423 if (pDev->button) { 424 for (i = 0; i < pDev->button->numButtons; i++) { 425 if (BitIsOn(pDev->button->down, i)) { 426 QueuePointerEvents(pDev, ButtonRelease, i, 427 POINTER_ABSOLUTE, 428 NULL); 429 } 430 } 431 } 432 433 if (pDev->key) { 434 for (i = 0; i < NUM_KEYCODES; i++) { 435 if (BitIsOn(pDev->key->down, i + MIN_KEYCODE)) { 436 QueueKeyboardEvents(pDev, KeyRelease, i + MIN_KEYCODE); 437 } 438 } 439 } 440 DarwinPokeEQ(); 441 } input_unlock(); 442 } 443 444 void 445 DarwinSendTabletEvents(DeviceIntPtr pDev, int ev_type, int ev_button, 446 double pointer_x, double pointer_y, 447 double pressure, double tilt_x, 448 double tilt_y) 449 { 450 ScreenPtr screen; 451 ValuatorMask valuators; 452 453 screen = miPointerGetScreen(pDev); 454 if (!screen) { 455 DEBUG_LOG("%s called before screen was initialized\n", 456 __FUNCTION__); 457 return; 458 } 459 460 /* Fix offset between darwin and X screens */ 461 pointer_x -= darwinMainScreenX + screen->x; 462 pointer_y -= darwinMainScreenY + screen->y; 463 464 /* Adjust our pointer location to the [0,1] range */ 465 pointer_x = pointer_x / (double)screenInfo.width; 466 pointer_y = pointer_y / (double)screenInfo.height; 467 468 valuator_mask_zero(&valuators); 469 valuator_mask_set_double(&valuators, 0, XQUARTZ_VALUATOR_LIMIT * pointer_x); 470 valuator_mask_set_double(&valuators, 1, XQUARTZ_VALUATOR_LIMIT * pointer_y); 471 valuator_mask_set_double(&valuators, 2, XQUARTZ_VALUATOR_LIMIT * pressure); 472 valuator_mask_set_double(&valuators, 3, XQUARTZ_VALUATOR_LIMIT * tilt_x); 473 valuator_mask_set_double(&valuators, 4, XQUARTZ_VALUATOR_LIMIT * tilt_y); 474 475 input_lock(); 476 { 477 if (ev_type == ProximityIn || ev_type == ProximityOut) { 478 QueueProximityEvents(pDev, ev_type, &valuators); 479 } else { 480 QueuePointerEvents(pDev, ev_type, ev_button, POINTER_ABSOLUTE, 481 &valuators); 482 } 483 DarwinPokeEQ(); 484 } input_unlock(); 485 } 486 487 void 488 DarwinSendPointerEvents(DeviceIntPtr pDev, int ev_type, int ev_button, 489 double pointer_x, double pointer_y, 490 double pointer_dx, double pointer_dy) 491 { 492 static int darwinFakeMouseButtonDown = 0; 493 ScreenPtr screen; 494 ValuatorMask valuators; 495 496 screen = miPointerGetScreen(pDev); 497 if (!screen) { 498 DEBUG_LOG("%s called before screen was initialized\n", 499 __FUNCTION__); 500 return; 501 } 502 503 /* Handle fake click */ 504 if (ev_type == ButtonPress && darwinFakeButtons && ev_button == 1) { 505 if (darwinFakeMouseButtonDown != 0) { 506 /* We're currently "down" with another button, so release it first */ 507 DarwinSendPointerEvents(pDev, ButtonRelease, 508 darwinFakeMouseButtonDown, 509 pointer_x, pointer_y, 0.0, 0.0); 510 darwinFakeMouseButtonDown = 0; 511 } 512 if (darwin_all_modifier_flags & darwinFakeMouse2Mask) { 513 ev_button = 2; 514 darwinFakeMouseButtonDown = 2; 515 DarwinUpdateModKeys( 516 darwin_all_modifier_flags & ~darwinFakeMouse2Mask); 517 } 518 else if (darwin_all_modifier_flags & darwinFakeMouse3Mask) { 519 ev_button = 3; 520 darwinFakeMouseButtonDown = 3; 521 DarwinUpdateModKeys( 522 darwin_all_modifier_flags & ~darwinFakeMouse3Mask); 523 } 524 } 525 526 if (ev_type == ButtonRelease && ev_button == 1) { 527 if (darwinFakeMouseButtonDown) { 528 ev_button = darwinFakeMouseButtonDown; 529 } 530 531 if (darwinFakeMouseButtonDown == 2) { 532 DarwinUpdateModKeys( 533 darwin_all_modifier_flags & ~darwinFakeMouse2Mask); 534 } 535 else if (darwinFakeMouseButtonDown == 3) { 536 DarwinUpdateModKeys( 537 darwin_all_modifier_flags & ~darwinFakeMouse3Mask); 538 } 539 540 darwinFakeMouseButtonDown = 0; 541 } 542 543 /* Fix offset between darwin and X screens */ 544 pointer_x -= darwinMainScreenX + screen->x; 545 pointer_y -= darwinMainScreenY + screen->y; 546 547 valuator_mask_zero(&valuators); 548 valuator_mask_set_double(&valuators, 0, pointer_x); 549 valuator_mask_set_double(&valuators, 1, pointer_y); 550 551 if (ev_type == MotionNotify) { 552 if (pointer_dx != 0.0) 553 valuator_mask_set_double(&valuators, 2, pointer_dx); 554 if (pointer_dy != 0.0) 555 valuator_mask_set_double(&valuators, 3, pointer_dy); 556 } 557 558 input_lock(); 559 { 560 QueuePointerEvents(pDev, ev_type, ev_button, POINTER_ABSOLUTE, 561 &valuators); 562 DarwinPokeEQ(); 563 } input_unlock(); 564 } 565 566 void 567 DarwinSendKeyboardEvents(int ev_type, int keycode) 568 { 569 input_lock(); 570 { 571 QueueKeyboardEvents(darwinKeyboard, ev_type, keycode + MIN_KEYCODE); 572 DarwinPokeEQ(); 573 } input_unlock(); 574 } 575 576 /* Send the appropriate number of button clicks to emulate scroll wheel */ 577 void 578 DarwinSendScrollEvents(double scroll_x, double scroll_y) { 579 ScreenPtr screen; 580 ValuatorMask valuators; 581 582 screen = miPointerGetScreen(darwinPointer); 583 if (!screen) { 584 DEBUG_LOG( 585 "DarwinSendScrollEvents called before screen was initialized\n"); 586 return; 587 } 588 589 valuator_mask_zero(&valuators); 590 valuator_mask_set_double(&valuators, 4, scroll_y); 591 valuator_mask_set_double(&valuators, 5, scroll_x); 592 593 input_lock(); 594 { 595 QueuePointerEvents(darwinPointer, MotionNotify, 0, 596 POINTER_RELATIVE, &valuators); 597 DarwinPokeEQ(); 598 } input_unlock(); 599 } 600 601 /* Send the appropriate KeyPress/KeyRelease events to GetKeyboardEvents to 602 reflect changing modifier flags (alt, control, meta, etc) */ 603 void 604 DarwinUpdateModKeys(int flags) 605 { 606 DarwinUpdateModifiers( 607 KeyRelease, darwin_all_modifier_flags & ~flags & 608 darwin_x11_modifier_mask); 609 DarwinUpdateModifiers( 610 KeyPress, ~darwin_all_modifier_flags & flags & 611 darwin_x11_modifier_mask); 612 darwin_all_modifier_flags = flags; 613 } 614 615 /* 616 * DarwinSendDDXEvent 617 * Send the X server thread a message by placing it on the event queue. 618 */ 619 void 620 DarwinSendDDXEvent(int type, int argc, ...) 621 { 622 XQuartzEvent e; 623 int i; 624 va_list args; 625 626 memset(&e, 0, sizeof(e)); 627 e.header = ET_Internal; 628 e.type = ET_XQuartz; 629 e.length = sizeof(e); 630 e.time = GetTimeInMillis(); 631 e.subtype = type; 632 633 if (argc > 0 && argc < XQUARTZ_EVENT_MAXARGS) { 634 va_start(args, argc); 635 for (i = 0; i < argc; i++) 636 e.data[i] = (uint32_t)va_arg(args, uint32_t); 637 va_end(args); 638 } 639 640 wait_for_mieq_init(); 641 642 input_lock(); 643 { 644 mieqEnqueue(NULL, (InternalEvent *)&e); 645 DarwinPokeEQ(); 646 } input_unlock(); 647 }